Lawn-tennis-court marker



" no model.

H. RBIGHWEIN.' LAWN mums GOURT MARKER.

A M A. I. g i "i WITNESSES: i7 v/vr0/? ATTORNEYJE" UNITED STATES PATENT OFFICE.

HERMAN REIOHl/VEIN, OF. SPRING LAKE, NEW JERSEY.

LAWN-TENNlS-COURT MARKER.

SPECIFICATION forming part of Letters Patent No. 475,154, dated May 17, 1892.

Serial No.419A36. (No model.)

To all whom it may concern.-

Be it known that I, HERMAN REICHWEIN, of Spring Lake, in the county of Monmouth and State of New Jersey, have invented a new and useful Improvement in Lawn-Tenn'is-Court Markers, of which the followingis a full, clear, and exact description.

The object of this invention is to produce a simple and convenient implement which will be adapted to hold and deliver in proper quantity a pulverized material in straight lines that are form ed as the device is progressively moved over the ground where a court is to be projected lineally.

To this end my invention consists in the construction and combination of parts, as is hereinafter described and claimed.

Reference is to be had to the accompanying drawings, forming a part of this specification, in which similar letters of reference indicate corresponding parts in all the figures.

Figure 1 is a side view, partly in section, on the line 1 1 in Fig. 2. Fig. 2 is a plan View; and Fig. 3 is a transverse section on the line 3 3 in Fig. 1, the removed parts being restored.

An oblong rectangular dust-box A, having a screen B afiixed to its lower side, is supported to slide longitudinally withina casing O, which casing has a slot or opening in its base below said screen. At the forward portion of the casing are formed or secured two parallel arms a, that are transversely perforated near their free endsto receive an axle b, whereon a supporting-wheel D is secured, said wheel being thus adapted to rotate when the casing O is progressively moved. From one side of the wheel D a series of pins aproject, which are arranged in a circular row concentric with the axle b. An arm d, having a forwardly-projecting finger e secured on its upper end, is pivoted near its longitudinal center at d between the parallel arms a, the finger having a bearing on the pins 0 successively when the wheel D is rotated. The lower end of the rock-arm d is loosely connected to one end of a link-bar g, that is joined at its opposite end to the forward end of the dust-box A. The contact of the fingerpiece e with the pins 0 is inforced by a spring h, that has one end attached to the upperend of the rock-arm d and its other terminal secured to one of the parallel arms a. The lower wall of the casing O is slotted longitudinallyof a proper Width to define a courtline of correct breadth. On the top of the casing C an aperture is formed for the introduction of any suitable pulverized material that will produce a white stripe or line on the ground when sifted on it, and a lid 2' is preferably hinged at one end to close the aperture. A pair of handle-bars E are secured oppositely on the sides of the casingO by screws or other means, which handle-bars project upward and rearward, so as to be readily grasped by the operator when the device is to be used. The handle-bars E may be curved at their free ends or be left straight, as may be preferred,and to stiffen them a transverse brace m is held between them at a proper point by screws or other means.

In use the dust-box A, having been charged with the white powder and the lid closed, a diagram of the court may be quickly laid off by simply moving the device forwardly along a guide-line, or if the operator is expert the guideline may be dispensed with. As the dust-box A is rapidly shaken by the successive impulses given in one direction by the finger-bar e and pins 0 and oppositely by the contractile force of the spring h, the powder within the box will be evenly siftedthere- I from in a continuous line as the marker is pushed by the operator. At any time it is necessary the marker may be utilized to renew the court-lines which have been partly or entirely obliterated by the feet of the players.

Having thus fully described myinvention, I claim as new and desire to secure by Letters Patent- 1. A lawn-tennis-court marker comprising a casing open at its base, a dust-box reciproeating in the casing and provided with a lid and a foraminated bottom, a supportingwheel journaled at the front of the casing and having a circularly-arranged series of pins on one face,avertical arm pivoted at the rear of said wheel and having aspring-pressed finger at the upper end in the path of said pins, and

a link-bar connecting the dust-box with said arm, substantially as described.

2. In a lawn-tennis-court marker, the combination, with a casing open at its base and provided with a lid and handle-bars and a supporting-wheel journaled at the front of the casing and having a circularly-arranged series of pins on one face, of a dust-box reeiprocable in the casing and having a forami- 1o nated bottom, a vertical arm pivoted at the rear of the supporting-wheel, having a springpressed finger at its upper end in the path of said pins, and a link-bar connecting the dustbox with the lower end of said arm, substantially as described.

HERMAN REICHWEIN.

Witnesses:

J. H. BUCHANAN, E. V. PATTERSON. 

